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Vinyl, shellac and lacquers, at least those that are not flaking off. As 
one of people discovered when we first got the machine (its been here for 
more than seven years) you can put CDRs in the bath. They explode or at 
least burst apart.


Graham McDonald
Recorded Sound Archivist
National Film and Sound Archive of Australia, 
McCoy Circuit, Acton, Canberra  ACT  2601 
Tel:  02 6248 2192 
www.nfsa.gov.au



From:   Malcolm Rockwell <[log in to unmask]>
To:     [log in to unmask], 
Date:   12/02/2013 01:25 PM
Subject:        Re: [ARSCLIST] Ultrasonic cleaner
Sent by:        Association for Recorded Sound Discussion List 
<[log in to unmask]>



Do you clean shellac 78s or lacquer coated aluminum discs this way??
I can see it for vinyl discs, but shellac?
Malcolm Rockwell

*******

On 2/11/2013 3:54 PM, Graham McDonald wrote:
> We have an Elma Transonic Digital machine which has a tank about
> 18"x12"x12" and we put just about every disc that gets transfered in it
> first, On really grungy discs you can see the stuff coming out of the
> grooves like little streams of smoke in the water. There is an additive 
in
> the water, Cetramide, which I think (may be wrong) precipitates the 
grunge
> out to the bottom of the tank. The second stage is a modified Keith 
Monks
> cleaning machine where the suck-up arm has been attached to a rather 
more
> powerful vacum than the original fish tank style pump. It is just there 
to
> suck the water from the ultrasonic tank away
>
> cheers
>
> graham
>
> Graham McDonald
> Recorded Sound Archivist
> National Film and Sound Archive of Australia,
> McCoy Circuit, Acton, Canberra  ACT  2601
> Tel:  02 6248 2192
> www.nfsa.gov.au
>
>
>
> From:   Steven Smolian <[log in to unmask]>
> To:     [log in to unmask],
> Date:   12/02/2013 11:21 AM
> Subject:        [ARSCLIST] Ultrasonic cleaner
> Sent by:        Association for Recorded Sound Discussion List
> <[log in to unmask]>
>
>
>
> Has anyone recent experience cleaing records with an ultrasonic cleaner?
> I'm particularly interested in any experience with 45s.and 78s.
> 
> Steve Smolian
>